Lighting device, which is used, in particular for emergency signaling



FIG. 1 is a perspective view of a lighting device, which is used, in particular for emergency signaling, showing my new design;

FIG. 2 is a front elevation view thereof; and,

FIG. 3 is a side elevation view thereof, with the opposite side being a mirror image. 

I claim, the ornamental design for a lighting device, which is used, in particular for emergency signaling, as shown and described. 